[dsymutil] Introduce exit helper. NFC.

llvm-dsymutil will start creating temporary files in a followup
commit. To ease the correct cleanup of this files, introduce a
helper called to exit dsymutil.

llvm-svn: 244086

2 files changed, 12 insertions, 3 deletions

diff --git a/llvm/tools/dsymutil/dsymutil.cpp b/llvm/tools/dsymutil/dsymutil.cpp
index 54a4b5b3332..07fdf314c44 100644
--- a/llvm/tools/dsymutil/dsymutil.cpp
+++ b/llvm/tools/dsymutil/dsymutil.cpp
@@ -77,6 +77,10 @@ static std::string getOutputFileName(llvm::StringRef InputFile) {
   return OutputFileOpt;
 }
 
+void llvm::dsymutil::exitDsymutil(int ExitStatus) {
+  exit(ExitStatus);
+}
+
 int main(int argc, char **argv) {
   llvm::sys::PrintStackTraceOnErrorSignal();
   llvm::PrettyStackTraceProgram StackPrinter(argc, argv);
@@ -120,7 +124,7 @@ int main(int argc, char **argv) {
     if (auto EC = DebugMapPtrOrErr.getError()) {
       llvm::errs() << "error: cannot parse the debug map for \"" << InputFile
                    << "\": " << EC.message() << '\n';
-      return 1;
+      exitDsymutil(1);
     }
 
     if (Verbose || DumpDebugMap)
@@ -131,8 +135,8 @@ int main(int argc, char **argv) {
 
     std::string OutputFile = getOutputFileName(InputFile);
     if (!linkDwarf(OutputFile, **DebugMapPtrOrErr, Options))
-      return 1;
+      exitDsymuti(1);
   }
 
-  return 0;
+  exitDsymutil(0);
 }
diff --git a/llvm/tools/dsymutil/dsymutil.h b/llvm/tools/dsymutil/dsymutil.h
index cd530a1177a..7c1810f4fad 100644
--- a/llvm/tools/dsymutil/dsymutil.h
+++ b/llvm/tools/dsymutil/dsymutil.h
@@ -44,6 +44,11 @@ llvm::ErrorOr<std::unique_ptr<DebugMap>> parseDebugMap(StringRef InputFile,
 /// \returns false if the link failed.
 bool linkDwarf(StringRef OutputFilename, const DebugMap &DM,
                const LinkOptions &Options);
+
+/// \brief Exit the dsymutil process, cleaning up every temporary
+/// files that we created.
+LLVM_ATTRIBUTE_NORETURN void exitDsymutil(int ExitStatus);
+
 }
 }
 #endif // LLVM_TOOLS_DSYMUTIL_DSYMUTIL_H